/Engine/Plugins/Media/ElectraCodecs/Source/ElectraDecoders/Public/IElectraDecoderOutputAudio.h
Returns the number of bytes per decoded frame. For channel interleaved data this is typicallyGetNumChannels()*GetBytesPerSample()while per-channel data typically returns the same asGetBytesPerSample()
int32 GetBytesPerFrame() const